Answer:

Step-by-step explanation:
It is pulled by three forces as given below
1. Jack pulls directly ahead of the donkey with a force of 61.3 N,
2. Jill pulls with 83.9 N in a direction 45° to the left, and
3. Jane pulls in a direction 45° to the right with 137 N.
Now net force directly in forward direction given as


Now similarly in perpendicular to this we have


Now net force is given by them


